Refrigerator



C. A. MOORE March 7, 1933.

REFRIGERATOR Filed March 19, 1930 2 Sheets-Sheet l xiii; 4 ll.

Charles A Moore C. A. MOORE March 7, 1933.

REFRIGERATOR Filed March 19, 1930 2 Sheets-Sheet 2 IIIIIIIIII/IIIIIIIIIIIII/IIII/I/I/IIIII 3mm Charles A Moore I in illustrated includes a box-like cabinet A Patented Mar. 7, 1933 PATENT OFFICE cHARLns A. income, or EDINA, MINNESOTA REFRIGERATOR Application filed March 19, 1930. Serial No. 437,010.

Myinvention relates to improvements in .refrigerators, an objectthereof being to pro- Vide a simple, durable, inexpensive and eflioient refrigerator for domestic and commercial use having separate compartments in which goods of difierent kinds may be completely isolated one from another. A further object of the invention is to provide withina refrigerating chamber a number of individual compartments and a refrigerating element arranged to provide an active convective and diffused circulation of air within the chamber about said compartments, whereby the refrigerator is rendered efficient in maximum degree.

Another object of the invention is to provide a refrigerator, as above, wherein is incorporated simple and efiective means for ventilating the individual compartments.

With the foregoing and other objects in view, which will appear in the following description, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter described and claimed.

In the drawings, Fig. 1 is a view, partly in front elevation and partly in section, illustrating a refrigerator embodying my invention; Fig. 2 is a vertical sectional view taken as on the line 2-2 of Fig. 1; Fig. 3 is a fragmentary vertical sectional view taken as on the line 33 of Fig. 1; Fig. 4 is a frag mentary elevational view illustrating one of the doors of an alternate formof my invention and showing a construction, whereby the individual compartment, closed by said door, is ventilated by means incorporated in the door; Figs. 5 and 6 are detail sectional views taken as on the lines 5=5 and 6-6, respectively, of Fig. 4.

Reference being had to the drawings, it will be observed that the refrigerator therecomprising a bottom 10, ends 11, front 12, back 13 and top 14. This cabinet is supplied with an inner lining 15 insulated as at 16 from said parts of said cabinet- Within chamber B provided by the cabinet are two tiers of casings C. Each casing provides a separate provision compartment D and consists of a top, 17, bottom 18 and sides 19. These compartments are closed at the back by the lining 15 of the cabinet. The frontof each casing opens at the front of the cabinet, being-normally closed by means of a door 20 swung on hinges 21 and locked in closed position by a latch 22. These doors 20,1which may be insulated as at 23, are supplied with an inner lining 24. The two tiers of casings C are spaced apart to provide a central space from top to bottom of the chamber B between the inner sides 19 of the casings. The uppermost casings are spaced at their tops from the ceiling of the refrigerator chamber. The lowermost casings are spaced at their bottoms from the fioor of the chamber. The outer sides of said casings are spaced from the end wall surfaces of the chamber and the casings in each tier are separated from each other to provide a space between'them.

Within the upright central space is a refrigerating element E consisting of a coiled pipe 25 adapted to convey therethrough a circulating refrigerant by means of which the interior of the chamber may be refrigerated. This refrigerating element E is located in said central space at a position near the ceiling of the refrigerating chamber B.

When the refrigerant circulates through this element, the air in chamber B is affected thereby. The air at the top of the central -f space, being aflected in greatest degree, descends within said space along the inner sides 19 of the casings C to'the floor of the cham-' ber B, thence divides at that locality flowing in opposite directions along the floor of the chamber beneath the bottoms 18 of the lowermost casings C to the ends of the chamber, thence ascends along the inner wall surfaces of these relativel warm ends in the spaces between said surf ces and the outer sides 19 of the casings C, thence upon reaching the ceiling of the chamber B, moves inwardly to the refrigerating element E, where the cycle is completed and inaugurated anew.

Air in the space between the upper and lower casings C of each tier enters the stream of air ascending along the outer sides 19 of the casings (J, the same being replaced by air from the stream descending from the refrigcrating element E in the centralair space.

From the foregoing, it will be understood that the several individual compartments D are uniformly and effectively refrigerated and that the user of the refrigerator may employ the several compartments D for the storage of commodities of different types, to the end that the commodities in one compartment need not be subjected to odors from the commodities in another compartment.

The individual refrigerating compartments D are individually ventilated in a manner now to be described. Referring to Figs. 1, 2 and 3, it will be seen that for each compartment I have incorporated within the cabinet structure a pair of ventilating conduits, one an air ingress conduit 26 and the other an air egress conduit 27. These conduits may be formed of sheet metal and im bedded in the insulating material 16 of the cabinet or may be otherwise disposed so that the air therein may be affected by the temperature maintained within the cabinet. The upper end of each air ingress conduit 26 communicates at its upper end with the outer air and at its lower end with the lower portion of its respective provision compartment D. Each air egress conduit 27 communicates at its upper end with the upper portion of its respective provision compartment D and at its lower end with the outer air, all as clearly shown in Figs. 1, 2 and 3, the air in the different conduits being afi'ected by the refrigerated air within the chamber B and compartments D therein. These conduits, 26 and 27 it will be noted, are spaced apart in substantially maximum degree. Ventilation by gravitatlon is set up in each of the individual compartments D, air from the upper portion of each compartment gravitating to the outside through its respective egress conduit 27 while air from the outside gravitates into the lower portion of the compartment through its respective ingress conduit 26.

An alternate form of ventilating means for the individual compartments may be incorporated in the cabinet structure in a somewhat different manner, as shown in Figs. 4, 5 and 6. In this alternate construction the ventilating means for each compartment D is confined to the door 20 of the cabinet which closes the open end thereof. Ineach door are two upright conduits, one an ingress conduit 28 and the other an egress conduit 29,

said conduits being spaced apart substantially as far as the dimensions of the door will permit. The ingress conduit 28 opens at its upper end to the outside through the face of the door, the lower end thereof opening into the lower portion of its respective compartment D. The egress conduit 29 communicates at its upper end withthe upper portion of thecompartment and opens at its lower end into the outer air through the face of the door.

Thus, in addition to effectively refrigerating the isolated contents of the 'difi'erent compartments in the cabinet, each compartment is efi'ectively ventilated individually.

Ny invention is particularly advantageous in that the desirable results are secured relatively economically and in a structure of comparatively simple construction. Gravity serves to promote the internal circulation of the refrigerated air about the different casings C forming the compartments D and serves to set up a ventilating movement of air within each compartment individually.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is 1. In a refrigerator, a cabinet providing a chamber, casings within the chamber providing separate provision compartments, said casings being spaced from the walls of the chamber and from each other to provide a cenpendent ventilating means for each compartment, the same comprising a pair of upright conduits incorporated in the cabinet, one conduit communicating at its upper end with the outer air and at its lower end with the lower portion of its respective compartment, the other conduit communicating at its upper end with the upper portion of said compartment'and at its lower end with the outer air.

2. In a refrigerator, a cabinet providing a chamber, a casing within the chamber spaced from inner walls thereof and providing a provision compartment interiorally isolated from the interior of the cabinet, said cabinet including a door forming a side wall of the casing andafiording access to the compartment therein, means in said door for the incasing, and for effecting the ventilation of said chamber, by gravity, through said means.

3. In a refrigerator, a cabinet having a provision compartment therein and a door affording access to said compartment and constituting one side thereof, an upright conduit in said door for the gravitating ingress of fresh air to said compartment, said conduit communicating at its upper end with the outer atmosphere and at its lower end with said compartment at the lower portion thereof, and a second upright conduit in said door for the gravitating egress of air from said compartment, said second conduit communicating at its upper end with said com-' partment at the upper portion thereof and at its lower end with the outer atmosphere.

In testimony whereof I afiix my signature.

CHARLES A. MOORE. 

